Emerging Trends in Metamaterials and Metasurfaces Research
A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optoelectronics and Optical Materials".
Deadline for manuscript submissions: 10 November 2024 | Viewed by 2026
Special Issue Editors
Interests: metamaterials; photonics
Special Issue Information
Dear Colleagues,
Metamaterials and metasurfaces are artificially structured materials crafted through the precise arrangement of metallic or dielectric inclusions, often organized in a periodic lattice. Crucially, the way these structures behave at the mesoscopic level is determined not only by the chemical composition of their constituent elements, but also by the specific geometric characteristics (size, shape, orientation, and more) of these elements. As a result, metamaterials and metasurfaces provide a multitude of design possibilities and, consequently, a wide range of physically attainable responses. These intricately engineered materials have the potential to yield unconventional and advantageous electromagnetic responses that extend beyond the capabilities of natural media. Their meticulous manipulation of electromagnetic fields and unprecedented control over electromagnetic wave propagation have positioned metamaterials and metasurfaces at the forefront of scientific research for over two decades. The objective of this Special Issue is to showcase the most current developments in metamaterial design and applications, with a focus on configurations offering advanced properties, versatile functionalities and intriguing applications. We invite you to submit a research paper on the theoretical aspects and/or practical applications of artificially structured media in this Special Issue of Photonics entitled “Emerging Trends in Metamaterials and Metasurfaces Research”.
We welcome submissions on topics that include (but not limited to) emerging trends on :
- Nonlinear metamaterials and metasurfaces;
- Reconfigurable and programmable (smart) metamaterials and metasurfaces;
- Spacetime-modulated structures;
- Metamaterials and metasurfaces for enhanced imaging capabilities;
- Active metamaterials and metasurfaces;
- Metamaterials and metasurfaces for biomedical applications;
- Metamaterials and metasurfaces for wavefront control;
- Topological metamaterials and metasurfaces;
- Extreme wave phenomena in metamaterials and metasurfaces;
- Metamaterial antennas and sensors.
Dr. David E. Fernandes
Dr. Tiago A. Morgado
Guest Editors
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
Keywords
- nonlinear metamaterials and metasurfaces
- reconfigurable and programmable (smart) metamaterials and metasurfaces
- space-time modulated structures
- metamaterials and metasurfaces for enhanced imaging capabilities
- active metamaterials and metasurfaces
- metamaterials and metasurfaces for biomedical applications
- metamaterials and metasurfaces for wavefront control
- topological metamaterials and metasurfaces
- extreme wave phenomena in metamaterials and metasurfaces
- metamaterial antennas and sensors
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Analyses of an Ultra-Wideband Absorber from UV-B to Middle-IR Utilizing a Square Nanopillar and a Square Hollow Embedded in a Square Cavity of Top Layer of Multilayer Metamaterials
Authors: Chia-Te Liao; Pei-Xiu Ke; Chia-Min Ho; Cheng-Fu Yang; and Tung-Lung Wu
Affiliation: Department of Chemical and Materials Engineering, National University of Kaohsiung
Abstract: In this study, an ultra-wideband absorber spanning from UV-B to middle-IR was designed and analyzed using a novel structure. The multilayer metamaterial, arranged from bottom to top, consists of an Al metal layer, a lower SiO2 layer, a graphite layer, another SiO2 layer, a thin Ti layer, and a top SiO2 layer. The top layer of SiO2 had a 200 nm square cavity etched out, and then a square Ti nanopillar and a square Ti hollow outside the Ti nanopillar were embedded. This specific arrangement was chosen to maximize the absorption properties across a broad spectrum. The absorption spectrum of the designed absorber was thoroughly analyzed using the commercial finite element analysis software COMSOL Multiphysics®. This analysis confirmed that the combination of these various components achieved perfect absorption and an ultra-wideband response. The synergistic interaction between the layers and the nanopillar structure contributed significantly to the absorber’s efficiency, making it a promising candidate for applications requiring broad-spectrum absorption. The comprehensive analyses of the parameters for different structures demonstrated that the effects of guided-mode resonance, coupling resonance, optical impedance matching, and propagating surface plasmon resonance existed in the investigated structure. The optimal model, determined through analyses using COMSOL Multiphysics®, showed that the broadband absorption in the range of 270 to 3600 nm, spanning from UV-B to middle-IR, exceeded 90.0%. The average absorption rate within this range was 0.967, with the highest reaching a near-perfect absorptivity of 99.9%. We also compared three absorption spectra in this study: the t1-t6 flat structure, the t1-t5 flat structure with t6 featuring a square cavity, and the structure proposed in this study. This demonstrates that a square nanopillar and a square hollow embedded in a square cavity can enhance the absorptive properties of the absorber.